1121690679 has 8 divisors (see below), whose sum is σ = 1496790000. Its totient is φ = 747192576.

The previous prime is 1121690641. The next prime is 1121690729. The reversal of 1121690679 is 9760961211.

1121690679 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1121690679 - 2¹⁶ = 1121625143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1121690679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121692679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145932 + ... + 153425.

It is an arithmetic number, because the mean of its divisors is an integer number (187098750).

Almost surely, 2^1121690679 is an apocalyptic number.

1121690679 is a deficient number, since it is larger than the sum of its proper divisors (375099321).

1121690679 is a wasteful number, since it uses less digits than its factorization.

1121690679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300609.

The product of its (nonzero) digits is 40824, while the sum is 42.

The square root of 1121690679 is about 33491.6508849594. The cubic root of 1121690679 is about 1039.0211076985.

The spelling of 1121690679 in words is "one billion, one hundred twenty-one million, six hundred ninety thousand, six hundred seventy-nine".